Xiaomi Smart Doorbell 3 Every Detail in Sharp 2K Clarity | Clear Video even in Dark | Real-Time Monitoring | Diagonal 180° Ultra-Wide View | Advanced AI Motion Detection | Smart Voice Change Intercom | Free 72-Hour Rolling Cloud Storage | Built-in 5200mAh Battery Specifications Product: Xiaomi Smart Doorbell 3 Size: 128*60*23.5mm Battery capacity: 5200mAh Rated input: 5V-2A Connectivity: Wi-Fi IEEE 802.11b/g/n, 2.4GHz, RF 433MHz Infrared light: 940nm infrared light Storage: Cloud storage Operating temperature: -10~45℃ Operating humidity: 10%-90%RH Product: Xiaomi Smart Doorbell 3 Electronic Chime Size: 60*60*39.6mm Rated input: 5V-2A Connectivity: RF 433MHz (receiving only) Operating temperature: 0~45℃ Operating humidity: 10%-90%RH Package contents Xiaomi Smart Doorbell 3 Mounting base Chime Removal pin Type-C charging cable Screws User manual Attention sticker Warranty notice